Umthengisi wezinto eziphathekayo zegraphite, igraphite ye-EV, igrisi, iziko kunye nawo nawaphi na amanye amashishini.

Ingaba iGraphite ithathe indawo yelothe nini kwiipensile
(Ingaba iGraphite ithathe indawo yelothe nini kwiipensile) Igraphite, uhlobo lwezinto ezisekelwe kwikhabhoni, has been used in pencils for centuries as a lubricant and insulator. Nangona kunjalo, when did graphite replace lead in…



























































































